Pub Date : 2018-12-01DOI: 10.1109/ICCCAS.2018.8768957
Yulin Yang, Rui Zhao
In this paper, we consider joint beamforming optimization for multiple-input multiple-output (MIMO) simultaneous information and power transfer (SWIPT) system. Our aim is to maximize the achievable security rate. However, this optimal problem is non-convex, so we exploit semi-definite relaxation (SDR) and the first-order Taylor approximation to transform the original non-convex problem into a new convex problem. Then the sub-optimal beamforming matrices were obtained by the SCA iterative algorithm and singular value decomposition method. Numerical results have shown the effectiveness of the scheme proposed in this paper.
{"title":"Research on the Joint Transmitter Beamforming Design for MIMO System with SWIPT","authors":"Yulin Yang, Rui Zhao","doi":"10.1109/ICCCAS.2018.8768957","DOIUrl":"https://doi.org/10.1109/ICCCAS.2018.8768957","url":null,"abstract":"In this paper, we consider joint beamforming optimization for multiple-input multiple-output (MIMO) simultaneous information and power transfer (SWIPT) system. Our aim is to maximize the achievable security rate. However, this optimal problem is non-convex, so we exploit semi-definite relaxation (SDR) and the first-order Taylor approximation to transform the original non-convex problem into a new convex problem. Then the sub-optimal beamforming matrices were obtained by the SCA iterative algorithm and singular value decomposition method. Numerical results have shown the effectiveness of the scheme proposed in this paper.","PeriodicalId":166878,"journal":{"name":"2018 10th International Conference on Communications, Circuits and Systems (ICCCAS)","volume":"266 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124328481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-01DOI: 10.1109/ICCCAS.2018.8769288
Yafei Guo, Y. Wan
In recent years, images are particularly important in the process of information transmission with the rapid development of information technology. Image quality is severely degraded due to the shooting environment, acquisition equipment and weather changes. This paper presents an image enhancement algorithm for night image by adjusting the background data of the value component (V) in HSV space. We firstly obtain background image from V, then increase the dynamic range of the background image by segmentation optimization transfer function. Subsequently, the optimized background image pixel value is divided by the pixel value before optimization to obtain the enhancement coefficient. Finally, we can restore the enhancement V from enhanced background image. Experimental results show that the method has made two significant improvements in image quality and visual effects.
{"title":"Image Enhancement Algorithm Based on Background Enhancement Coefficient","authors":"Yafei Guo, Y. Wan","doi":"10.1109/ICCCAS.2018.8769288","DOIUrl":"https://doi.org/10.1109/ICCCAS.2018.8769288","url":null,"abstract":"In recent years, images are particularly important in the process of information transmission with the rapid development of information technology. Image quality is severely degraded due to the shooting environment, acquisition equipment and weather changes. This paper presents an image enhancement algorithm for night image by adjusting the background data of the value component (V) in HSV space. We firstly obtain background image from V, then increase the dynamic range of the background image by segmentation optimization transfer function. Subsequently, the optimized background image pixel value is divided by the pixel value before optimization to obtain the enhancement coefficient. Finally, we can restore the enhancement V from enhanced background image. Experimental results show that the method has made two significant improvements in image quality and visual effects.","PeriodicalId":166878,"journal":{"name":"2018 10th International Conference on Communications, Circuits and Systems (ICCCAS)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121386763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-01DOI: 10.1109/ICCCAS.2018.8768935
Xiangdong Xie, Shan Luo, R. Lin, Jiyan Huang
As the ultra-dense networks (UDNs) deploy base stations closely, unmanned aerial vehicle (UAV) communications may have serious interference on terrestrial communications. Spectrum sensing is employed for UAV. It is required a low and constant missed detection rate for UAV to avoid accessing frequency bands within licensed signals. Instead of traditional Constant False Alarm Rate (CFAR), this paper proposes a Constant Missed Detection Rate (CMDR) based on spectrum sensing. Two specific signal detection approaches are used to realize CMDR, which are Likelihood Ratio Test (LRT) and Energy Detector (ED). Simulation results are given and consistent with the theory.
{"title":"A Constant Missed Detection Rate Based Spectrum Sensing for UAV Communications towards Ultra-Dense Networks","authors":"Xiangdong Xie, Shan Luo, R. Lin, Jiyan Huang","doi":"10.1109/ICCCAS.2018.8768935","DOIUrl":"https://doi.org/10.1109/ICCCAS.2018.8768935","url":null,"abstract":"As the ultra-dense networks (UDNs) deploy base stations closely, unmanned aerial vehicle (UAV) communications may have serious interference on terrestrial communications. Spectrum sensing is employed for UAV. It is required a low and constant missed detection rate for UAV to avoid accessing frequency bands within licensed signals. Instead of traditional Constant False Alarm Rate (CFAR), this paper proposes a Constant Missed Detection Rate (CMDR) based on spectrum sensing. Two specific signal detection approaches are used to realize CMDR, which are Likelihood Ratio Test (LRT) and Energy Detector (ED). Simulation results are given and consistent with the theory.","PeriodicalId":166878,"journal":{"name":"2018 10th International Conference on Communications, Circuits and Systems (ICCCAS)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123172336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper describes the development of silicon power diodes from two aspects: single devices and composite devices. Single devices include Fast Recovery Diode, the combination of Schottky Barrier Diode and PN junction, MOS-based Super Barrier Rectifier and Buried Layer Rectifier. Composite devices include two novel integrated diodes-Charge Pump Switch and Cool Bypass Switch. This paper outlines the structure, principles, and applications of each power diode, and makes predictions about the future direction of power diodes at the end of the paper.
{"title":"Silicon Power Diode Devices, Development and Future Prospects","authors":"Qiang Yuan, Zehong Li, Mengqi Yang, Defu Sun, Yingxin Song, K. Zhu","doi":"10.1109/ICCCAS.2018.8769210","DOIUrl":"https://doi.org/10.1109/ICCCAS.2018.8769210","url":null,"abstract":"This paper describes the development of silicon power diodes from two aspects: single devices and composite devices. Single devices include Fast Recovery Diode, the combination of Schottky Barrier Diode and PN junction, MOS-based Super Barrier Rectifier and Buried Layer Rectifier. Composite devices include two novel integrated diodes-Charge Pump Switch and Cool Bypass Switch. This paper outlines the structure, principles, and applications of each power diode, and makes predictions about the future direction of power diodes at the end of the paper.","PeriodicalId":166878,"journal":{"name":"2018 10th International Conference on Communications, Circuits and Systems (ICCCAS)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124900329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-01DOI: 10.1109/ICCCAS.2018.8768954
Yuzhong Ding, Long Jin
The Tactical Air Navigation (TACAN) system is an effective tool for airborne navigation. Kalman filtering can accurately extract the envelope signal in the modulation signal of the TACAN system, and it requires few hardware resources. This paper proposes an optimized Kalman filtering process and applies it to the TACAN system, improving the computing efficiency and guaranteeing system stability.
{"title":"Algorithm Optimization of Kalman Filtering in the Tactical Air Navigation System","authors":"Yuzhong Ding, Long Jin","doi":"10.1109/ICCCAS.2018.8768954","DOIUrl":"https://doi.org/10.1109/ICCCAS.2018.8768954","url":null,"abstract":"The Tactical Air Navigation (TACAN) system is an effective tool for airborne navigation. Kalman filtering can accurately extract the envelope signal in the modulation signal of the TACAN system, and it requires few hardware resources. This paper proposes an optimized Kalman filtering process and applies it to the TACAN system, improving the computing efficiency and guaranteeing system stability.","PeriodicalId":166878,"journal":{"name":"2018 10th International Conference on Communications, Circuits and Systems (ICCCAS)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128704310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-01DOI: 10.1109/ICCCAS.2018.8769277
Shiji Yuan, B. Qiu, Peng Yu, Yunsheng Yang, Huihui Sun
The interference between electronic equipment have become more and more serious with the extensive use of information equipment. In order to effectively solve the interference problem between electronic equipment, the paper use the receiver nonlinear coefficient method to quantitatively analyze and calculate the self-interference and mutual interference of electronic equipment. Then based on the genetic algorithm, the equipment frequency is optimized, and the genetic coding and adaptation are designed. Finally, the algorithm is used to simulate the frequency optimization of a small regional electronic equipment. The simulation experiment results show that the method provided by this paper can solve the frequency optimization problem of electronic equipment to a certain extent.
{"title":"Research on Frequency Optimization of Electronic Equipment Based on Nonlinear Coefficient","authors":"Shiji Yuan, B. Qiu, Peng Yu, Yunsheng Yang, Huihui Sun","doi":"10.1109/ICCCAS.2018.8769277","DOIUrl":"https://doi.org/10.1109/ICCCAS.2018.8769277","url":null,"abstract":"The interference between electronic equipment have become more and more serious with the extensive use of information equipment. In order to effectively solve the interference problem between electronic equipment, the paper use the receiver nonlinear coefficient method to quantitatively analyze and calculate the self-interference and mutual interference of electronic equipment. Then based on the genetic algorithm, the equipment frequency is optimized, and the genetic coding and adaptation are designed. Finally, the algorithm is used to simulate the frequency optimization of a small regional electronic equipment. The simulation experiment results show that the method provided by this paper can solve the frequency optimization problem of electronic equipment to a certain extent.","PeriodicalId":166878,"journal":{"name":"2018 10th International Conference on Communications, Circuits and Systems (ICCCAS)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117131683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-01DOI: 10.1109/ICCCAS.2018.8769279
Younghyeon Park, B. Jeon
Since near-infrared (NIR) image information is useful in improving visible range (VIS) image, acquisition of both images in a more simple and economic way has drawn much research interest. Deep-learning based approach is found to be effective in the separation from a mixed NIR and VIS image captured by a conventional camera, however, it has a problem of high computational complexity, especially for an image of high spatial resolution. In this paper, we propose a method for separating high-resolution VIS and NIR images using a deep-learning based on a conditional generative adversarial network. Experimental results show that the proposed method can reduce the computational complexity by 97 times as compared with the previous work without loss in image quality.
{"title":"Spatially High Resolution Visible and Near-Infrared Separation using Conditional Generative Adversarial Network and Color Brightness Transfer Method","authors":"Younghyeon Park, B. Jeon","doi":"10.1109/ICCCAS.2018.8769279","DOIUrl":"https://doi.org/10.1109/ICCCAS.2018.8769279","url":null,"abstract":"Since near-infrared (NIR) image information is useful in improving visible range (VIS) image, acquisition of both images in a more simple and economic way has drawn much research interest. Deep-learning based approach is found to be effective in the separation from a mixed NIR and VIS image captured by a conventional camera, however, it has a problem of high computational complexity, especially for an image of high spatial resolution. In this paper, we propose a method for separating high-resolution VIS and NIR images using a deep-learning based on a conditional generative adversarial network. Experimental results show that the proposed method can reduce the computational complexity by 97 times as compared with the previous work without loss in image quality.","PeriodicalId":166878,"journal":{"name":"2018 10th International Conference on Communications, Circuits and Systems (ICCCAS)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121992393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-01DOI: 10.1109/ICCCAS.2018.8769232
S. Riaz, Xiongwen Zhao, S. Geng
A novel frequency agile MIMO patch antenna based on a reconfigurable feedline is presented. The proposed antenna structure has two hexagonal-shaped patch antenna elements. A defected ground structure (DGS) having hexagonal shape is included in the ground plane to make the design compact and improve isolation between antenna elements. Further compactness is achieved using reactive loading. Frequency reconfigurability is realized by employing varactor diodes in microstrip feedline. The proposed antenna achieves a frequency reconfigurable band with wide tuning range from 1.41 to 2.26 GHz with good gain and efficiency. Furthermore, an envelope correlation coefficient (ECC) did not exceed 0.2 and isolation was more than 12 dB, demonstrating good MIMO performance. The presented antenna has a planar, low profile structure with compact size of 100 × 50 mm2. The proposed design is validated by simulations, displaying good results. The reconfigurability, wide range tuning, low ECC and compact size makes the presented antenna a good candidate for wireless handheld devices in cognitive radio applications.
{"title":"A Compact Frequency Reconfigurable MIMO Antenna with Agile Feedline for Cognitive Radio Applications","authors":"S. Riaz, Xiongwen Zhao, S. Geng","doi":"10.1109/ICCCAS.2018.8769232","DOIUrl":"https://doi.org/10.1109/ICCCAS.2018.8769232","url":null,"abstract":"A novel frequency agile MIMO patch antenna based on a reconfigurable feedline is presented. The proposed antenna structure has two hexagonal-shaped patch antenna elements. A defected ground structure (DGS) having hexagonal shape is included in the ground plane to make the design compact and improve isolation between antenna elements. Further compactness is achieved using reactive loading. Frequency reconfigurability is realized by employing varactor diodes in microstrip feedline. The proposed antenna achieves a frequency reconfigurable band with wide tuning range from 1.41 to 2.26 GHz with good gain and efficiency. Furthermore, an envelope correlation coefficient (ECC) did not exceed 0.2 and isolation was more than 12 dB, demonstrating good MIMO performance. The presented antenna has a planar, low profile structure with compact size of 100 × 50 mm2. The proposed design is validated by simulations, displaying good results. The reconfigurability, wide range tuning, low ECC and compact size makes the presented antenna a good candidate for wireless handheld devices in cognitive radio applications.","PeriodicalId":166878,"journal":{"name":"2018 10th International Conference on Communications, Circuits and Systems (ICCCAS)","volume":"587 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123041740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-01DOI: 10.1109/ICCCAS.2018.8769156
Li Weiyan, Liu Bin, Liu Tao
The importance of different nodes in the urban road network is diverse. In order to improve the mining accuracy and efficiency of the influential nodes in road network, semi-local centrality index of complex network is introduced into the urban road network, and an influential node mining algorithm for weighted road network that integrates the characteristics of urban road network is proposed. Taking the road network of Nanjing as the research object, the algorithm proposed in this paper is compared with the degree centrality and the beweeenness centrality algorithm. Experiments show that the algorithm is simple and the time complexity is low, but the sorting result is much better than the degree centrality and the beweeenness centrality, and it is more suitable for the large-scale complex urban road network.
{"title":"Mining Influential Nodes in Urban Road Networks Based on Semi-local Centrality","authors":"Li Weiyan, Liu Bin, Liu Tao","doi":"10.1109/ICCCAS.2018.8769156","DOIUrl":"https://doi.org/10.1109/ICCCAS.2018.8769156","url":null,"abstract":"The importance of different nodes in the urban road network is diverse. In order to improve the mining accuracy and efficiency of the influential nodes in road network, semi-local centrality index of complex network is introduced into the urban road network, and an influential node mining algorithm for weighted road network that integrates the characteristics of urban road network is proposed. Taking the road network of Nanjing as the research object, the algorithm proposed in this paper is compared with the degree centrality and the beweeenness centrality algorithm. Experiments show that the algorithm is simple and the time complexity is low, but the sorting result is much better than the degree centrality and the beweeenness centrality, and it is more suitable for the large-scale complex urban road network.","PeriodicalId":166878,"journal":{"name":"2018 10th International Conference on Communications, Circuits and Systems (ICCCAS)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132437725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In order to reduce the weight of the UHV live working tools and make the tools easier to install and use for the live working personnel, the UHV live working tools based on the carbon fiber materials were developed in this paper. In view of the carbon fiber composite materials have the problem of stress concentration, the new knitting process was put in forward in this paper and the best parameters of solidification process was determined by the repeated test. According to mechanical simulation analysis and experiment, the tool force weak spot was found and the way to optimize the mechanical properties by inlaying titanium alloy is presented in this paper. On this basis, the six-splitting wire hooks and the link plate fixture made of carbon fiber composite materials were developed. It is shown by the field application that the live working task can be accomplished successfully by using the new developed tools. All of these provide reference for the UHV live working tools implementing the light aromatics.
{"title":"Optimization Research for Carbon Fiber UHV Live Working Tools","authors":"Jinliang Li, Huisong Ren, Lanlan Liu, Miao Yang, Li Xu, Zhaohui Zhen","doi":"10.1109/ICCCAS.2018.8769243","DOIUrl":"https://doi.org/10.1109/ICCCAS.2018.8769243","url":null,"abstract":"In order to reduce the weight of the UHV live working tools and make the tools easier to install and use for the live working personnel, the UHV live working tools based on the carbon fiber materials were developed in this paper. In view of the carbon fiber composite materials have the problem of stress concentration, the new knitting process was put in forward in this paper and the best parameters of solidification process was determined by the repeated test. According to mechanical simulation analysis and experiment, the tool force weak spot was found and the way to optimize the mechanical properties by inlaying titanium alloy is presented in this paper. On this basis, the six-splitting wire hooks and the link plate fixture made of carbon fiber composite materials were developed. It is shown by the field application that the live working task can be accomplished successfully by using the new developed tools. All of these provide reference for the UHV live working tools implementing the light aromatics.","PeriodicalId":166878,"journal":{"name":"2018 10th International Conference on Communications, Circuits and Systems (ICCCAS)","volume":"129 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134201901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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